Ap biology exam 2012 essay questions


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Mosca, Mrs. I also feel there were some major concepts left out in this exam. I think it tested your ability of interpreting data more than it did your knowledge of Biology. Since when did Biology become a statistics class? As far as the essays go, the long form were pretty okay. I still think the short answers were the easiest part of the whole exam though. Then again, I'm always overly critical of my work and it is a new exam so NO ONE really knew what they were doing, so I guess there's still a little hope??

All in all, I can't say I'm entirely pleased with the format and time restraints on this exam.

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AP Biology 2012-2013 EXAM

I think the College Board has to do some tweaking to do to make it a little more realistic as far as time goes, but I doubt they will. I took it yesterday also and didn't think that it was too bad. The MC was really easy for me think ACT science with the answer in the problem and the grid-ins were all super easy as well. The long essays were harder for me, and the short essays were not too bad.

I preferred this year's format over the previous one. I finished with 20 min to spare in each section, as did many of my classmates, so I think that the timing was reasonable. Some in my class didn't finish, but they were people who struggled with timing all year. Honestly I thought that it was pretty tough this year. The multiple choice was extremely weird, but the free response wasn't so bad. A lot of people from my school were frustrated because studying hard this year for content really didn't pay off for some people.

Frankly, I would have preferred last year's exam over this year's.

Ap bio college board essay answers

From what I have heard about in previous years, the questions used to be extremely straight forward, but this year it was very different. Also, I heard from a lot of people in previous years that time was practically not an issue at all, whereas I had a lot of friends that struggled to finish this year. I have a feeling though that this year's curve will be a lot more lenient I definitely think the format of the new AP Bio exam was ridiculous..

Dig into the processes of cellular respiration and fermentation, examining how cells use energy to create ATP and other products. Ponder how variation at the molecular level and in the number and types of cells allows organisms to respond to environmental impacts and survive. Unit 4 Cell Communication and Cell Cycle. Examine how cells communicate with each other via cell-to-cell contact or over long distances with signals. Analyze signal transduction pathways and how their various components produce cellular responses.

Finally, probe how cells are multiplied and regulated with mitosis and the cell cycle.

2012 AP Exam Score Distributions

Compare and contrast how cells communicate with each other via cell-to-cell contact or over distances with signals or local regulators. Focus on how signal transduction pathways function from the recognition of a chemical messenger to a signal from a receptor to the cell target. Describe how signal transduction pathways can influence how a cell responds to its surroundings and result in changes in genetic expression. Predict how changes in a signal transduction pathway can affect how the cell responds to its environment.

Compare and contrast positive and negative feedback mechanisms that maintain homeostasis or respond to environmental disruptions. Cycle through the cell cycle from interphase to mitosis to cytokinesis. Determine the effects on organisms when the internal controls and checkpoints of the cell cycle are disrupted. Unit 5 Heredity. What does "It's in your genes! Learn about how genetic information is inherited and how genetic variation occurs through the process of meiosis. Explore how meiosis allows for chromosomes to be passed on from one generation to the next.

Dig into how the processes of crossing over and random assortment allow for genetic variation to occur. Examine how genes are passed on with Mendel's laws, and calculate the probability that offspring will have a certain genotype. Investigate the exceptions to Mendel's laws, including sex-linked traits, non-nuclear inheritance, codominance, and incomplete dominance. Peruse data that indicates that environmental factors, such as temperature, can influence gene expression and potentially lead to different phenotypes. Discover how different patterns of chromosomal inheritance, including segregation, independent assortment, nondisjunction, and fertilization, result in genetic variation.

Unit 6 Gene Expression and Regulation. Dig into the structure of DNA more and learn about how DNA is specifically replicated, transcribed, and translated at the molecular level. Examine epigenetic factors and other factors that regulate gene expression. Discover how mutations can occur and affect organisms in positive, negative, or neutral manners.

Distinguish between the base pairings of DNA and RNA, and discover how the passing of genetic information differs between eukaryotes and prokaryotes.

Describe how DNA replicates semiconservatively, aided by different enzymes, such as helicase, topoisomerase, DNA polymerase, and ligase. Check out how regulatory sequences and epigenetic changes can affect gene expression, and look into how groups of genes can be regulated in tandem. Analyze how transcription factors and negatively regulatory molecules either promote or inhibit transcription, often resulting in differential gene expression. Errors in transcription, translation, replication, mitosis, or meiosis can lead to different types of mutations that can be positive, neutral, or potentially very harmful.

Examine various genetic engineering techniques, including electrophoresis, polymerase chain reaction, bacterial transformation, and DNA sequencing. Unit 7 Natural Selection. Why are we so similar to monkeys? Are birds mini-dinosaurs? Explore how life originated on Earth and how it has diversified over time.

Dig a little bit more into what "survival of the fittest" really means in Darwin's theory of natural selection, and learn how natural selection affects populations. Discover how natural selection acts upon already existing phenotypic variations in populations, which can be caused by environmental changes.

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